Hi guys i just bought a 3gs that had software issues, it used to be mine and i jailbroke it, well i got it for $20 but the problem started in the morning when my friend unplug the phone from the charger it had a spinning circle and the screen was black, thats all it does, it doest go to dfu or recovery and yes the buttons work, when i connect it to itunes it detects it but says that it has a password and cant restore but the screen just shown the spinning circle please help!

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Dfu should definitely work if iTunes detects that it's plugged in and shows the spinning wheel. Like I said earlier, use recboot or tiny umbrella to put the phone immediately into recovery mode to restore.